Bing, That's not the point. The point is a program has to be ready to handle the possibility of corrupted, truncated or fragmented data.
Writing a client-server program, particularly at the socket level, is not easy for that very reason. If you fail to take the possibilities into account, you may well be coming back to the list saying "my program is crashing and I don't know why." Wade On Jun 15, 2011, at 2:04 PM, Bing Li wrote: > I test the program just on a single Mac machine using TCP, i.e., both the > client and the server are located on the same machine. So I think it is > impossible that the data is corrupted during the transmission. > > Thanks so much! > Bing > > On Thu, Jun 16, 2011 at 2:57 AM, Scott Ribe > <scott_r...@elevated-dev.com>wrote: > >> On Jun 15, 2011, at 12:38 PM, Jens Alfke wrote: >> >>> Also also, be aware that creating an NSString from UTF-8 data can result >> in a nil string if the data is not valid UTF-8. This can happen if the >> packet gets corrupted in transit or if something else is accidentally or >> maliciously sending unexpected data to your port. To be robust, your code >> should detect this and (probably) just ignore the packet. >> >> So, come to think of it, what if the packet breaks in the middle of a >> multi-byte sequence? >> >> -- >> Scott Ribe >> scott_r...@elevated-dev.com >> http://www.elevated-dev.com/ >> (303) 722-0567 voice >> >> >> >> >> > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/wadesworld%40mac.com > > This email sent to wadeswo...@mac.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
